car: 1990 camaro tpi was a 305 , now a 350. 700R trans. 2.73 rear.
I have a thud noise coming out from under my car and it all started one day when i tried to do a burn out and i heard a loud bang. now everytime i step on it the car makes a loud thud, If i pick up slow nothing happens. So i either think its the driveshaft,rear,trans,or a moter mount, but i want to narrow it down, I don't want to change all of them, all help would be great, THANKS to everyone!!

 

i hope its your mounts are you shifting fine change your rear fluid and look to check if you have any damage

 

i had the same problem its more than likly your tranny mount

 

Can you feel anything through the shifter?

 

i feel nothing threw the shifter,thats the first thing i tried doing
TRANS MOUNT!!! wow, i never thought of that, duhh me, Thats probably it, sounds just like its coming from the trans, but like not from the gears, thanks alot man, I really appriciate..woo hoo, back to the track!!

 

Tranny mounts on these cars break all the time. Get a polyurethane one, it'll last longer.

 

i had the same problem the first year i got my car. Every time I would take off quick I would hear it. I went with a friend and he checked the tranny mount and it was in half. that year i broke two tranny mounts. Thats probably your problem.

 

i looked under the car and the nut on the tranny mount was missing, got a new nut and put it on, car feels sooo much better
thanks guys!! and my dad like hates computers...he's like "that computer can't fix your car.." well it just did
thank again

 

J isn't kidding..get a Poly mount from Energy Suspension or whoever else you can get it from. A stock piece will just rip again if you keep driving the way you do(normal or aggressive)...Mine ripped a week after I got the car

 

Note that the poly mount will transmit vibration more so, if you don't mind, go for it. If you do, stick with OEM.